6in1 WIFI pH/EC/TDS/SALT/SG/Temp controller and monitor. Simultaneously measures the pH value and the data of one selectable parameter from EC, TDS, SALT, SG, or Temp; the mode can be switched as needed. Includes 2 BNC electrodes (one for pH and one for EC/TDS/SALT/SG), 1 temperature probe, and 1 output power socket. Both electrodes are detachable and replaceable for easy maintenance or replacement. LCD with backlight for clear readings. Monitor multiple parameters at a glance with good visibility in low light for convenient night monitoring. WiFi enabled with a smart app. View current and historical data on your mobile device, and receive alarms for readings that exceed preset or low limits. Practical applications: Hydroponics and irrigation systems: continuously track pH and a selectable parameter (EC/TDS/SALT/SG/Temp) to optimize nutrient delivery and plant health. Freshwater or saltwater aquariums: keep pH and temperature or salinity within safe ranges, with remote alerts if values drift. Water treatment, labs, or hobbyist setups: monitor essential water quality parameters remotely, ensuring stable conditions and enabling timely adjustments.